A push forward construction and the comprehensive factorization for internal crossed modules

Giuseppe Metere, Alan S. Cigoli, Sandra Mantovani

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4 Citazioni (Scopus)

Abstract

In a semi-abelian category, we give a categorical construction of the push forward of an internal pre-crossed module, generalizing the pushout of a short exact sequence in abelian categories. The main properties of the push forward are discussed. A simplified version is given for action accessible categories, providing examples in the categories of rings and Lie algebras. We show that push forwards can be used to obtain the crossed module version of the comprehensive factorization for internal groupoids.
Lingua originaleEnglish
pagine (da-a)931-960
Numero di pagine30
RivistaApplied Categorical Structures
Volume22
Stato di pubblicazionePublished - 2014

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All Science Journal Classification (ASJC) codes

  • Theoretical Computer Science
  • Computer Science(all)

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